public void TestReplaceCondition()
        {
            var dictionary = new PinkoDictionary<string, string>();

            dictionary["k1"] = "value1";
            dictionary["k2"] = "value2";

            var replacedValue = dictionary.ReplaceCondition("k1",
                                                            x => true,
                                                            x => "new value1");
            Assert.IsNotNull(replacedValue);
            Assert.IsTrue(dictionary["k1"].Equals("new value1"));
            Assert.IsTrue(dictionary["k2"].Equals("value2"));
        }